Hello? I'm Taeyoung Kim.
We know that Tizen should have a module who handles system resources
such as system memory and netwrok traffic. Thus I want to suggest
the resource daemon (resourced) to handle these kinds of resources.
The followings are the main features of resourced.
1) Memory management
- resourced monitors memory status of system.
- If available memory size is low, resourced notices the situation for applications
to release memory not used, or swaps out compressed pages of background processes to RAM (zram).
- If available memory size is very low so that the system would not be stable (in case of OOM),
resourced terminates some applications to secure available memory size for the system stability.
- Memory cgroup is used for the memory management. All processes are grouped according to
the state of the processes (foreground, background, and swapped processes). The states of
the processes are used as a criterion for the swapping out and terminating processes.
2) Network monitoring
- resourced monitors network usages of applications.
- Network usages for all applications are accounted and shows the usages to Users
- Users can restrict their network usages not to cost a bomb.
- Users and ISPs can allow to use network for just a few application which they want.
(ex. Map service during roaming, Messages for emergency situation)
- net_cls cgroup is used to categorize processes as a same service, and netfilter is used
for the network monitoring and accounting. The data traffic is restricted by iptables
with cgroup extention.
resourced will use the git path: platform/core/system/resourced
If you have any opinions or questions, Let me know.
Thank you.
- Taeyoung Kim -
Taeyoung, Kim | SW Engineer
System S/W Lab./ S/W Platform Team
Software R&D Center
SAMSUNG ELECTRONICS CO., LTD.
Mobile +82.10.5133.9902
E_mail [email protected]
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